Paul Holmes-Higgin cefda8c965 Updated header to LGPL
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18931 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2010-03-01 22:48:39 +00:00

117 lines
3.1 KiB
Java

/*
* Copyright (C) 2009-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.transfer;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.alfresco.service.cmr.repository.ContentData;
import org.alfresco.service.cmr.transfer.TransferException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* The Content Chunker Splits Content into "Chunks" of a given size.
*
* @author Mark
*/
public class ContentChunkerImpl implements ContentChunker
{
private static Log logger = LogFactory.getLog(ContentChunkerImpl.class);
/**
* The chunk size.
*/
private long chunkSize = 1000000;
/**
* The handler to recieve the "chunks"
*/
private ContentChunkProcessor handler;
/**
* The internal buffer
*/
private Set<ContentData> buffer = new HashSet<ContentData>();
/**
*
*/
public void addContent(ContentData data) throws TransferException
{
logger.debug("add content size:" + data.getSize());
buffer.add(data);
/**
* work out whether the buffer has filled up and needs to be flushed
*/
Iterator<ContentData> iter = buffer.iterator();
long totalContentSize = 0;
while (iter.hasNext())
{
ContentData x = (ContentData)iter.next();
totalContentSize += x.getSize();
}
if(logger.isDebugEnabled())
{
logger.debug("elements " + buffer.size() + ", totalContentSize:" + totalContentSize);
}
if(totalContentSize >= chunkSize)
{
flush();
}
}
/**
*
*/
public void flush() throws TransferException
{
logger.debug("flush number of contents:" + buffer.size());
if(buffer.size() > 0)
{
handler.processChunk(buffer);
}
buffer.clear();
logger.debug("buffer empty");
}
public void setChunkSize(long chunkSize)
{
this.chunkSize = chunkSize;
}
public long getChunkSize()
{
return chunkSize;
}
public void setHandler(ContentChunkProcessor handler)
{
this.handler = handler;
}
public ContentChunkProcessor getHandler()
{
return handler;
}
}